The article below, The Amino Acid Pool, can be found at: https://www.juvel-5.co.uk/juvel-5-info-on-amino-acids/
This all sounds very scientific, so why should the layman concern himself with it? Because it directly concerns him! Athletes and bodybuilders use amino acids, as do doctors, who strive to achieve success in the treatment of AIDS. For some time, amino acids have also come to play an important part in the area of medical nutrition. By taking nutritional supplements, the increasing shortage of nutrients will continue to be counteracted. Last, but not least, problems with impotence and erection can be successfully managed with amino acids. Just one more reason to show an interest!
Amino acids such as L-arginine are substances, with which science is becoming more concerned. The 1998 Nobel Prize for Medicine, awarded to scientists Furchgott, Ignarro and Murad, was not in vain. These scientists examined the function of L-Arginine in the body. Other scientists dealt with different aspects. Out of this came the coined term ‘amino acid pool’ to refer collectively to the amino acids found in body deposits and circulation of the blood, which are continually available for use. The ingested proteins must be broken down by the digestive tract. They can then be deposited back into the bloodstream, where they can reach the tissue and intracellular storage. The highest concentration of amino acids can be found in the body cells. Certain amino acids are stored in the muscles, others in the tissue. Each amino acid concentration and composition is so that it can be useful to the body. The skeletal muscles are known to be the biggest reservoir of amino acids. The size of the amino acid pool is dependent upon factors such as nutrition, age, gender, level of consumption or illness.